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F. L. IMPEY. SUPPORT FOR LOOSE LEAF BOOKS.

APPLICATION men JAN. 20, 1921; 1,414,281 atented Apr. 25, 1922.

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Patented A a-.25, 1922.

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F. L. IMPEY. SUPPORT FOR LOOSE LEAF BOOKS.

APPLICATION FILED JAN. 2O, 92].

Patentd Apr. 25, 1922.

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F. L. IMPEY.

. SUPPORT FOR 1.0085 LEAF BOOKS.

A APPLICATION men MN. 20. 192:.

1,414,231, Patented Apr. 25, 1922.

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Inv 152222701 117976 y mlzzwy angle, or capable of being relatively tilted,

FRANCIS IiEVIT'I IMPEY, or la -Twists, E LAND.

l surronr ro n Loose-LEAF Books.

Specification of Letters Patent. A 3 1922 Application filed January 20, 1921-. -Serial No. 438 723. I

To all whom it may concerns Be it known that I, FmNois .lJEVITT IM- PEY, a subject of the King of Great Brit- .ain and Ireland, residing at Kalamazoo \Vorks, l orthfield, in the county of Warwick, England, have invented certain new and useful Improvements Relating to sup ports for Loose-Leaf Books, of which the following is a specification. r This invention has for its object to construct an improved support for use with loose leaf books, especially in conjunction with mechanical account keeping.

The invent-'on comprises the combination with a table or rack which may consist of two parts'arranged horizontally, or at an for the purpose of supporting the covers of the book, of a vertically movable abutment preferably having inclined sides and" capable of being raised relatively to the table for supporting the adjacent inner edges of the leaves in the two parts of an opened book. I The invention also comprises the combination with the abutment of means as hereinafter described for engaging and securing the binding bars of the book Further the invention comprises mechanism as hereinafter described for actuating the aforesaid abutment and means for enga g'the binding bars. 7 eferring to the four accompanying sheetsof explanatory drawingsz- V Figure l is a side elevation of a loose leaf book support constructed in accordance with, this invention,v the movable abutment being shown in the raised position, and an opened book being indicatedby dotted lines. Figures 2 and 3 are respectively Sectional siderelevation and front elevation of the movable abutment in the raised position, Figure at a sectional side elevation of the abutment raised and the catches witlidrz wn, and Figure 5 a like View with the abutment lowered. h

In carrying the invention into efi'ectas shown, a table 'is constructed from two parts a. b which either occupythe same horizontalplane or are relatively inclined. Inconjunction with one of the parts is provided a hinged plate a, with a strut d for supporting at any desired angle the bookcover restin on the said plate. I

etween the two parts of the table and movable in a guide 6 beneath the table is arranged anabutment of inverted V-shape. v

The abutment is slotted transversely at suit able positions for the passage of thebincb ing thongs or the like of the book, and it is also provided with-"means for on aging the binding b'arsof the book as heremafter described. I I

A. vertical spindle a lying between the sides of the abutment has formed with it a transverse cross head j provided with a.

horizontal slot. Over the spindle is J arranged a relatively movable sleeve attaohed by a crossbar Zlormed on the sleeve and screws m,;to the inner sidesof the abutment. 'Engaging the-slot in the crosslhead is a crank pin a projecting from one side of a! crank 0 which is actuated bya handle 20 arranged atone side of the table] One edge 9' of:the crank is adapted to act'as a cam forengaging the sleeveand holding it while a relative movement is being imparted to the spindle i To the upper end of the spindle are pivoted a pair of catches 1" for engaging the binding bars 9 (Figure 1) of the book. Each catchlies in a slot inone side of the abutment, so that each of the binding bars which lie on opposite sides of the'abutmentis engagedby a catch. On the sleeve are provided pegs s engaging inclined-slots t in v the catches, the arrangement being such that downward movementof the. spindlerela tively'to thesleeve causes the catches to move outwards and engage the binding bars; Upward catches.

- In operation the abutment initiallylies in its lower position (Figure 5). A book is then placed on one half of the support (say relative movement disengages the thepart 0) and the covers are released; The

uppermost cover is then turned over and placed. on the part b, the thongs connecting I v the covers being-caused to lie across the aforesaid slots in the abutment. Preferably the parts 6 and 0 are each provided with troughlike sockets uinfwhich. the'bindingi bars gattached to the covers can be placed for securing the said bars in proper relation y p to the covers. In Figurel the parts of the book are'shown in diagrammatic form in dotted lines, 2 indicates thecovers, and 4 the leaves. The binding thongs which pass through the slots in the abutment are omitted to avoid'confusion. The two covers of the book being now separated, leaving portions of the leaf binding' thongs exposed,

the abutment is raised by the cross head j past the thongs under the action of the operating handle,-and in this movement the spindle 27 and leeve it move together until the abutment reaches the upper limit of its motion (Figure l). The crank pin now occupies the central position in the'slot of the cross head y, and the sleeve is engaged by the cam edge 9 of the crank. Further movement of the handle causes the cross head j and consequently the catches r to be lowered slightly relatively to the sleeve and abutment and this movement is utilized to expand them by the action of the pegs s and slots t into engagement with the binding bars, this position being shown at Figures 1, 2 and 3. During the upward movement of the abutment the transverse slots in the same permit it to.

pass the binding thongs of the book.

The leaves can now be manipulated as required and arranged with their edges restingagainst opposite sidesof the abutment. Before closing the book, the leaves are all arranged on one side of the abutment, and prevented 'from displacement by posts in-, serted through holes in the leaves into sockets in the lower binding bar inthe ordinary manner. The abutment is then lowered to the out-of-service position, and they other cover can then be placed over the leaves and secured in the usual way. In the lowering operation the'first action is to dis-- engage the catches. This is effected by the slight raising .of the cross head j which occurs before the cam edge Q permits the sleeve 7:: to descend, the interaction of the pegs s and slots 25 causing the catches to be drawn together. Subsequently the catches and against relative lateral displacement whilst abutment move together clear of the book to the position shown in Figure '5. In conjunction with the faces of the abutments projecting guide pieces may be arranged as heretofore for engaging notches in the ad-- jacent edges of the leaves,but preferably advantage is taken ofthe projecting catches for this purpose, the said catches by entering the notches in the leaves hold them ticular niechanism for actuating the abutment and catches as these and other details may be varied to meet different requirements.

Having thus described my invention what I claim new and desire to secure by Letters Patent is:

1. In supports forloose leaf books, the combination of two-table parts, a vertically movable leaf abutment located between the said parts, and crank mechanism for raising and lowering the abutment, substantially as described.

2. ln supports for loose leaf books,-the combination of two table parts, a vertically movable leaf abutment between said parts,

outwardly extensible catches arranged in v conjunction with the abutment and adapted to secure the binding bars ofthe book, a vertical spindle carrying the catches, a sleeve on the spindle carrying the abutment, a connection between the abutment and catches whereby relative movement of said parts causes an outward or inward movementof the catches, and means for producing con-.

joint and independent movements of the spindle and sleeve, substantially as described. 3. In supports for loose leaf books, the combination of a pair of table parts, a vertically movable abutment between said parts, outwardly extensible catches in conjunction with the abutment, a vertical spindle to which the catches are hinged, a sleeve carried on the spindle and connected to the abutment, a slotted crosshead on the spindle, a crank engaging the said crosshead, a cam in conjunction with the crank for coacting with the sleeve. the said mechanism being adapted to produce conjoint and independ; ent movements of the spindle and sleeve, pinson the sleeve engaging inclined slots in the catches, and springs acting on. the spindle, substantially as described. 7'

4:. ln supports for loose leaf books, the combination of. two table parts, a vertically movable abutment between thetable parts, a

spindle situated in part within the abut ment, a slotted crosshead on the spindle. guides beneath the tableparts for thesaid crosshead. a sleeve mounted on the spindle and attached to the abutment, catches hinged to the upper end of the spindle, a crank engaging the crosshead, a cam in conjunction with the crank for acting on the sleeve, pins on the sleeve engaging inclined slots, in the catches, and springs acting on the spindle, substantially as described.

In testimony whereof I have signed my name to this'specification.

FRANCIS LEVITT iMrEY. 

